Inverter output voltage low maintenance method introduction

The inverter converts DC power (battery, battery) into alternating current (typically 220v50HZ sine or square wave). In general, an inverter is a device that converts direct current (DC) to alternating current (AC). It consists of an inverter bridge, control logic and filter circuits.

 

Widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVD, VCD, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc.

 

Simply put, an inverter is an electronic device that converts low voltage (12 or 24 volts or 48 volts) direct current to 220 volts AC. Because we usually use 220 volt AC to be converted to DC, and the inverter has the opposite effect, hence the name. We are in a “mobile” era, mobile office, mobile communication, mobile leisure and entertainment. In the mobile state, people not only need low-voltage DC power supplied by batteries or batteries, but also need 220 VAC, which is indispensable in our daily environment, and the inverter can meet our needs.

 

Use inverter considerations

The inverter must pay attention to the following points when selecting and using:

 

1) The DC voltage must be matched; each inverter has a nominal voltage, such as 12V, 24V, etc. The battery voltage required to be selected must be consistent with the nominal DC input voltage of the inverter. For example, a 12V inverter must select a 12V battery.

 

2) The inverter output power must be greater than the maximum power of the appliance; especially some equipment with large starting energy requirements, such as motors, air conditioners, etc., require additional power margin.

 

3) The positive and negative poles must be wired correctly. The DC voltage connected to the inverter is marked with positive and negative poles. In general, red is positive (+), black is negative (-), and the battery is also marked with positive and negative, red is positive (+), black is negative (-), and must be positively connected when connected (red) ), negative negative (black to black). The cable diameter must be thick enough and the length of the cable should be as small as possible.

 

Inverter output voltage low maintenance method introduction

 

4) The charging process and the inverter process cannot be performed at the same time to avoid damage to the equipment and cause malfunction.

 

5) The inverter housing should be properly grounded to avoid personal injury due to leakage.

 

6) In order to avoid electric shock damage, non-professionals are strictly prohibited to disassemble, repair and modify the inverter.

 

Inverter output voltage is low

First, the DC power supply is unstable and unstable.

 

Second, is the control signal correct?

 

Third, is the switching device operating normally?

 

Inverter output voltage low maintenance method

First check if the transformer output has high voltage. If there is any re-inspection, the drive signal of the drive board is not normal. Adjust the voltage or output power according to the panel instructions.